package com.cht.commonUtil.PageInit;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.cht.commonUtil.structure.I1S1;
import com.cht.commonUtil.webInit.SP;
import com.cht.commonUtil.widgets.Widgets;
import com.google.gson.Gson;

public class GetLocalSystemInfo extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request,response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		request.setCharacterEncoding( SP.UIcodeSet );
		response.setCharacterEncoding( SP.UIcodeSet );
		response.setContentType("application/json");
		
		Connection conn = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		List<I1S1> tses = new ArrayList<I1S1>();
		
		try {
			conn = Widgets.getConn();
			ps = conn.prepareStatement("SELECT sysSN,sysName FROM envsystemlist WHERE isLocalSys='t'");
			rs = ps.executeQuery();
			while ( rs.next() ) {
				I1S1 ts = new I1S1();
				ts.setI1( rs.getInt("sysSN") );
				ts.setS1( rs.getString("sysName") );
				tses.add(ts);
			}
		} catch( Exception e) {
			Widgets.errLog(e);
		} finally {
			try {
				if ( rs !=null ) { rs.close(); }
				if ( ps !=null ) { ps.close(); }
				if ( conn !=null ) { conn.close(); }
			} catch (Exception e) { e.printStackTrace(); }
		}
		
		response.getWriter().write( new Gson().toJson(tses) );
	
	}

}
